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Posted to user@hama.apache.org by "Edward J. Yoon" <ed...@apache.org> on 2010/03/01 13:23:48 UTC

Re: Information about the Jacobi EigenValue Algorithm

The code is based on pseudo code from wikipedia --
http://en.wikipedia.org/wiki/Jacobi_eigenvalue_algorithm. So yes, and
It works only for symmetric matrix as we know. Using
jacobiEigenValue(int maxIterations) method of DenseMatrix, we can get
eigenvalues and eigenvectors.

See also TestJacobiEigenValue unit test.

On Mon, Mar 1, 2010 at 1:51 PM,  <aa...@buffalo.edu> wrote:
> Hello People,
>             Today I came across the Jacobi Eigne Value algorithm in the Hama
> package. I just have a couple of questions about it.      1. Although I am sure
> we can use this algorithm to find the eigen values and eigen vectors for a dense,
> symmetric matrix, can somebody just confirm it.
> 2. Are there any requirements, loop holes or hidden gotcha's in the algorithm,
> run time
>
>
> Best Regards from Buffalo
>
> Abhishek Agrawal
>
> SUNY- Buffalo
> (716-435-7122)
>
>
>
>

-- 
Best Regards, Edward J. Yoon @ NHN, corp.
edwardyoon@apache.org
http://blog.udanax.org